Harm Jan Kok
Netherlands (NED)
May 1971 (M50)
Personal Records
| 500m | 40,41 | 13 March 2007 | Calgary (CAN) |
| 1000m | 1.18,93 | 16 March 2007 | Calgary (CAN) |
| 1500m | 1.58,84 | 14 March 2007 | Calgary (CAN) |
| 3000m | 4.13,84 | 2 March 2009 | Heerenveen (NED) |
| 5000m | 7.13,90 | 13 March 2007 | Calgary (CAN) |
| 10000m | 15.06,14 | 15 March 2007 | Calgary (CAN) |
Season Bests
| 500m | 44,92 | 29 December 2016 | Erfurt (GER) |
| 1500m | 2.17,65 | 29 December 2016 | Erfurt (GER) |
| 500m | 44,16 | 24 January 2015 | Heerenveen (NED) |
| 1500m | 2.16,32 | 24 January 2015 | Heerenveen (NED) |
| 500m | 43,71 | 9 October 2011 | Heerenveen (NED) |
| 1500m | 2.12,44 | 27 November 2011 | Heerenveen (NED) |
| 500m | 43,00 | 7 March 2011 | Heerenveen (NED) |
| 1000m | 1.27,50 | 13 March 2011 | Heerenveen (NED) |
| 1500m | 2.13,51 | 7 March 2011 | Heerenveen (NED) |
| 3000m | 4.39,49 | 9 January 2011 | Heerenveen (NED) |
| 5000m | 7.58,39 | 2 January 2011 | Heerenveen (NED) |
| 500m | 42,63 | 23 November 2009 | Heerenveen (NED) |
| 1500m | 2.10,53 | 23 November 2009 | Heerenveen (NED) |
| 3000m | 4.31,92 | 11 October 2009 | Heerenveen (NED) |
| 500m | 41,94 | 15 December 2008 | Heerenveen (NED) |
| 1000m | 1.24,29 | 23 November 2008 | Heerenveen (NED) |
| 1500m | 2.00,90 | 3 March 2009 | Heerenveen (NED) |
| 3000m | 4.13,84 | 2 March 2009 | Heerenveen (NED) |
| 5000m | 7.23,37 | 15 March 2009 | Heerenveen (NED) |
| 500m | 41,85 | 24 November 2007 | Heerenveen (NED) |
| 1000m | 1.22,72 | 24 November 2007 | Heerenveen (NED) |
| 1500m | 2.05,72 | 7 July 2007 | Heerenveen (NED) |
| 3000m | 4.23,31 | 29 October 2007 | Heerenveen (NED) |
Results
| Gewestelijke Wedstrijd voor A-Jun. en Ouder | Heerenveen (NED) | 20 February 2017 | ||||||||
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| Erfurt Last-2016 Race | Erfurt (GER) | 29 - 30 December 2016 | ||||||||
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| Clubwedstrijd Groep 3 | Heerenveen (NED) | 24 January 2015 | ||||||||
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| Clubwedstrijd Groep 3 | Heerenveen (NED) | 27 November 2011 | ||||||||
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| Clubwedstrijd Groep 3 | Heerenveen (NED) | 9 October 2011 | ||||||||
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Native Language Names